Keyserling; E. von Keyserling; Count Eugen v. Keyserling; Eugen Graf von Keyserling; Eugen, Graf von Keyserlingk
March 22, 1832 – April 04, 1889
arachnologist, zoologist, biologist, naturalist
Baltic German arachnologist (1832-1889)
http://www.wikidata.org/entity/Q221785
https://en.wikipedia.org/wiki/Eugen_von_Keyserling [View]
Kingdom of Prussia